1/*  Part of sCASP
    2
    3    Author:        Jan Wielemaker
    4    E-mail:        jan@swi-prolog.org
    5    Copyright (c)  2021, SWI-Prolog Solutions b.v.
    6    All rights reserved.
    7
    8    Redistribution and use in source and binary forms, with or without
    9    modification, are permitted provided that the following conditions
   10    are met:
   11
   12    1. Redistributions of source code must retain the above copyright
   13       notice, this list of conditions and the following disclaimer.
   14
   15    2. Redistributions in binary form must reproduce the above copyright
   16       notice, this list of conditions and the following disclaimer in
   17       the documentation and/or other materials provided with the
   18       distribution.
   19
   20    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   22    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   23    FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   24    COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   25    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   26    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   27    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   28    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   30    ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   31    POSSIBILITY OF SUCH DAMAGE.
   32*/
   33
   34:- module(scasp_just_human,
   35          [ human_justification_tree/2, % :Tree, +Options
   36            human_model/2,              % :Model, +Options
   37            human_query/2,              % :Query, +Options
   38            human_predicate/2,          % :Rule, +Options
   39            human_rule/2                % :Rule, +Options
   40          ]).   41:- use_module(html).   42:- use_module(html_text).   43:- use_module(library(http/html_write)).   44:- use_module(library(option)).   45
   46:- meta_predicate
   47    human_justification_tree(:, +),
   48    human_model(:, +),
   49    human_query(:, +),
   50    human_predicate(:, +),
   51    human_rule(:, +).

 human_justification_tree(:Tree, +Options) is det

Print Tree to current_output in human representation. Normally this is used together with ovar_analyze_term/1.

See also

- print_message/2.

   73:- det(human_justification_tree/2).   74
   75human_justification_tree(M:Tree, Options) :-
   76    phrase(human_output(M:Tree,
   77                        [ depth(0),
   78                          module(M)
   79                        | Options
   80                        ]), Tokens0),
   81    fixup_layout(Tokens0, Tokens),
   82    format(current_output, '~N', []),
   83    print_message_lines(current_output, '', Tokens).

 human_output(:FilterChildren, +Options)

   87human_output(Tree, Options) -->
   88    !,
   89    emit_as(\html_justification_tree(Tree, Options),
   90            plain).
   91
   92
   93		 /*******************************
   94		 *            MODEL		*
   95		 *******************************/

 human_model(:Model, +Options)

   99human_model(M:Model, Options) :-
  100    phrase(emit_model(Model,
  101                      [ module(M)
  102                      | Options
  103                      ]), Tokens0),
  104    fixup_layout(Tokens0, Tokens),
  105    print_message_lines(current_output, '', Tokens).
  106
  107:- det(emit_model//2).  108
  109emit_model(Model, Options) -->
  110    emit_as(\html_model(Model, Options),
  111            plain).
  112
  113
  114		 /*******************************
  115		 *            QUERY		*
  116		 *******************************/

 human_query(:Query, +Options)

  120human_query(M:Query, Options) :-
  121    phrase(emit_query(M:Query,
  122                      [ module(M)
  123                      | Options
  124                      ]), Tokens0),
  125    fixup_layout(Tokens0, Tokens),
  126    print_message_lines(current_output, '', Tokens).
  127
  128:- det(emit_query//2).  129
  130emit_query(Query, Options) -->
  131    emit_as(\html_query(Query, Options),
  132            plain).
  133
  134
  135		 /*******************************
  136		 *           PROGRAM		*
  137		 *******************************/

 human_predicate(Clauses, Options)

  143human_predicate(Clauses, Options) :-
  144    human_text(\html_predicate(Clauses, Options)).

 human_rule(:Rule, +Options)

  148human_rule(M:Rule, Options) :-
  149    phrase(emit_rule(Rule,
  150                     [ module(M)
  151                     | Options
  152                     ]), Tokens0),
  153    fixup_layout(Tokens0, Tokens),
  154    print_message_lines(current_output, '', Tokens).
  155
  156:- det(emit_rule//2).  157
  158emit_rule(Rule, Options) -->
  159    emit_as(\html_rule(Rule, Options),
  160            plain).
  161
  162
  163:- html_meta
  164    human_text(html).  165
  166human_text(Rule) :-
  167    phrase(emit_as(Rule, plain), Tokens0),
  168    fixup_layout(Tokens0, Tokens),
  169    print_message_lines(current_output, '', Tokens).
  170
  171
  172
  173
  174
  175		 /*******************************
  176		 *         INTEGRATION		*
  177		 *******************************/
  178
  179:- multifile
  180    scasp_stack:justification_tree_hook/2,
  181    scasp_model:model_hook/2.  182
  183scasp_stack:justification_tree_hook(Tree, Options) :-
  184    option(human(true), Options),
  185    !,
  186    human_justification_tree(Tree, Options).
  187scasp_model:model_hook(Model, Options) :-
  188    option(human(true), Options),
  189    !,
  190    human_model(Model, Options)